1165507668050 has 48 divisors (see below), whose sum is σ = 2441208824064. Its totient is φ = 410149320000.

The previous prime is 1165507668049. The next prime is 1165507668161. The reversal of 1165507668050 is 508667055611.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1165507668050.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34162061 + ... + 34196160.

It is an arithmetic number, because the mean of its divisors is an integer number (50858517168).

Almost surely, 2^{1165507668050} is an apocalyptic number.

1165507668050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165507668050 is an abundant number, since it is smaller than the sum of its proper divisors (1275701156014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165507668050 is a wasteful number, since it uses less digits than its factorization.

1165507668050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68358275 (or 68358270 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 50.

The spelling of 1165507668050 in words is "one trillion, one hundred sixty-five billion, five hundred seven million, six hundred sixty-eight thousand, fifty".